Island



June 10 1924, n

- G. rH. SICKELS i T Al.v

O-IL BURNING APPARATUS Filed oct. 13, 1922 2 sheds-Sheet 1 Y @coge @www y cvrye j/'Traff- La g L ,g 6% i .53 www,

June 1o 1924. x 1,497,646

G. H. SICKELS ET AL O IL BURNING APPARATUS Filed oct. 1s, 1922 2 sheets-sneer y Patented June 10, 1924.

UNITED STATES PATENT OFFICE.

GEORGE H. SICKELS AND GEORG-E F. KRAFT, O13* CRANSTON, RHODE ISLAND, ASSIGNORS TO S. & K. BURNER CORPORATION, A CORPORATION F RHODE ISLAND.

OIL-BURNING APPARATUS.

Application filed October 13, 1922.

T0 all whom it may concern.'

Be it known that we, GEORGE H. SICKELS and GEORGE F. KRAFT, citizens of the United States, residing at the city of Cranston, in

the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Oil-Burning y Apparatus, of which the following is a specification.

This invention relates to improvements in oil burning apparatus of the type more particularly adapted to be applied to heaters for buildings, such as steam generators, hotwater heaters and the like; and the object of this invention is to provide an improved construction and arrangement of such an apparatus in which the liquid fuel is conducted to the burner, located in the heater, through a pipe,and a separate or discharge pipe is connected to the fire pot of the burner so that in case an excessive and unconsumed amount of oil collects in the fire pot, it will flow back through the discharge pipe and serve as a medium for operating a shut-off valve to stop` further flow to the burner.

A further object of the invention is to p provide atire pot which is adapted to be supported on the grate of a heater, the grate about the fire pot being covered to control the passage of air therethrough so that the air draft through the grate may be conducted to the fire pot to cause the fuel and lits flame to spread and drive the flame from the pot to act upon the walls of the heater.

A still further object of the invention is to provide a ba-flie plate above the fire pot to further spread the flame upon being forced upwardly from the lire pot.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularlypointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a side elevation partly in section of our improved apparatus as applied to a heater. v

Figure 2 is a top View 'of the fire pot with the air-conducting lue'removed. y Figure 3 is a top viewof the lire pot supporting frame showing the openings therein through which the incoming air draft may pass.

Serial No. 594,351.

Figure 4s is a view of the under side Of the air draft flue.

Figure 5 is a central sectional view through the burner and through the air draft flue.

F igm'e 6 is a central sectional view through the burner, taken at right angles to that shown in Figure 5.

Figure 7 isa side elevation showing the arrangement of the cil supply and oil-discharge pipe; also showing the receptacle by which the oil-supply valve may be closed.

Figure 8 is a top view enlarged from Figure i', showing the supply-control valve in section and the valve-operating wheel mounted on the valve stem.,

It is found in practice in the .operation of oil burners of this character necessary to provide means whereby if the burner flame should become extinguished, the flow of oil can be automatically shut olf to prevent flooding the cellar with oil and so prevent waste and thehazardous effect from such result; and the following is a detailed description of one means by which these results may be accomplished With reference to the drawings, 10 designates the usual heater which may be employed in a dwelling house, or other buildling, that shown being one originally constructed to burn coal, coke, or other similar fuel, and to which my liquid fuel heating device is adapted to be readily applied.

In the construction of this `improved burner, we form an annular frame or casing 11 into which is adapted to be set a bewl member 12, best shown in Figure 6, with its ange 13 rest-ing on the edge of the frame 11. This bowl is provided on its opposite sides with triangularly-shaped, vertically-disposed passageways 14 which communicate with openings 15 in the bottom of the frame or casing 11 and on the upper edges of the walls of these openings 14, we have supported an air draft flue 16, t-he ends 17 of which communicate with the openings 14 and the center of this flue is provided with an opening 18 which directs the infiowing draft air downwardly onto th'e-cone-shaped'burner 19 located in the center of the bowl. p' Y i Y In applying this burner to the heater the same is passed in through'the furnace door 2O and is supported on a grate 21 in the middle of the furnace. A balile plate 2i?, is then positioned in the furnace a short distance above the burner proper and is supported on standards 23 from the outer edge of the tire pot, preferably at points in line with the air draft flue 16 whereby these standards are somewhat protected from the direct action of the flame. le then lit a metal plate or a piece of fine mesh screen wire 45 to cover thegrate around about the burner and cover this plate with a bed of ashes or sand 46 to tightly close the grate against the passage of air confining the same to its passage through the draft flue 16 into the lire pot.

In supplying this burner with liquid fuel, we first provide aV large supply tank24 and support the same on a frame 25 yor other suitable 'support and from its lower portion we lead a supply pipe 26 down through the `furnace wall `below thegrate 21 and then up through the grate and thread the saine into'thea ex of the cone 19. 1

In this ine of pipe we set a needlevalve 27 Awhich isdprovided with a small opening 28 7controlle bya tapered shut off spindle 29, and on the 'outcrend of which'spindle .we mounta control wheel 30 grooved on its periphery to receive a wire or cord 31 which may lbe wound a number of times Y around-its face for the `purpose presently described.

.When it is desired to turn `on the oil to flow to the burner, it `is only necessary to rotate vthis wheelzby hand a portion of a revolution to permit the required volume of oil to flow to .thejburner to obtain the re- Aquired amount of heat. Of course, the

.greater ythe amount of fuel supplied, the greater is the amount ofheat produced.

In some cases particularly when the burner `1s running low, that 1s when little Vheatis being required and little fuel being fed, sometimes, for one reason or another,

theQflame is extinguished? in which case ,the supply of oil would continue to flow and in time overflow the burner pot, run down through the grate andlfloodthe floor of the furnace room, which would be both expen- 'sive by the loss of oil and'also hazardous, owing to the fact that a large quantity of `combustible material wouldbe exposed tor Y take' lire'.

Therefore, it is found to be of advantage `to providemeans"whereby this flow of oil fjm'aybe'fautoinatically shut off when the Haine -ffails toconsume the fuel asvfast asfed, and

to` accomplish this in asimple and practical qwa'y, we'have drilled and tappedajhole 32 cinto the .fue pet near itsbottolh rportion vand ljvinto'this wel have threaded the'qend of.4 ag return or discharge pipej3. 1'I`hisi pipe, is led` ,@backv outside.' 0f, the; flurnaceand i.isgpfset, i .-=,;b.wk into? theplaneot that-.Qt fthewheel; 30 L and inte-this. retilrnipipeanflienthiione edge of the wheel, we have inserted a cross 34, into the upper opening of which is inserted a. length of wire guide tubing 35 through which the wire 31 is led and at the lower end of this wire directly beneath the cross is supported a resc'eptacle 36, whereby any surplus -oil collected in the bottom of the bowl member will run out through this pipe 33 and drop into the receptacle 36.

Act the outer end of this cross. we have inserted a. short section of pipe 37 which is connected to a T 3S, and into the upper end of this T we have threaded a `*short length of guide tubing 39, while into the lower -endof this T is threaded :a standard 40 i 'or the receptacle to rotate the valve' wheel 30 in either direction, b'utas soon as sutlicient Aoil has run from the discharge pipelinto the receptacle its weight 'overloalancesv the counterweight'42 and rotates the livheel 30 to shut off the supply of oil.

In order that` the operator may ,know exactlyyto what extent thejsupply' valve has been opened, we have mounted a graduated segment 43, see Figure 8, and wehave mounted a pointer 44 on the valve-wheel so that las the wheel is rotated thepointer will move over the graduated face of the segment fand so indicate the extent of opening of the valve. i

In some casesit isfound of .advantage to mount a second valve 47 in the `oil"supply pipe b v which the 4flow may be regulated independently of the auxiliary valve27'and always leave this automatic shutoffyalve wide open, in which case'the overflow receptacle 36 will be normallyv in raised position, as shown in Figure77, andin lthiscasewe haveprovideda cover 48 for thereceptacle which is supportedon the pipelittingthus Vpreventing any callous or mischievousperson from dropping articleshinto.theirecep tacle causing it-to operate and shut oil' the ilow when it should not be so operated. i

Our improved oil burning apparatus is simple and inexpensive inrconstructigonand very effective in its operation l and may be readily applied ,to a 4heater 4 originallybuilt This standard pipe 39, 40 ispreferably of llO building, and that Without the use of mechanical blowers or other devices which produce more or less disturbing sounds.

The foregoing description is directed solely towards the construction illustrated, but we desire it to be understood that We reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

We claim:

l. In an oil burning apparatus, a firepot, a pipe through which liquid fuel is supplied to said pot, a valve in said pipe controlling the supply flow, a second valve in said pipe Yfor controlling the supply flow, a discharge pipe leading from said pot, an operating member mounted on the stem of said second valve, a suspended receptacle connected to one side of said operating member and in position to receive the liquid from said discharge pipe, whereby the weight of a predetermined quantity of liquid in said receptacle causes it to act through said operating member to close said supply valve, a Weight guiding and protecting tube, and a counterbalance Weight suspended in said tube and connected to the opposite side of said member to balance the weight of said receptacle and hold it in raised position when empty.

2. In an oil burning apparatus, a irepot, a. pipe through which liquid fuel is supplied to the center of said pot, a valve in said pipe controlling the supply flow, a discharge pipe leading from said pot, a receptacle suspended by a iexible connector to said valve and positioned to receive the liquid from said discharge pipe whereby a predetermined quantity in said receptacle causes said valve to close and shut off the supply, and a counterweight on the opposite end of said connector inclosed in a protecting casing for holding the valve normally open and the supply receptacle in raised position.

3. In an oil burning apparatus, a firepot, a pipe through which liquid fuel is supplied to said pot, al valve in said pipe controlling the supplyflow, a discharge pipe leading from said pot, a receptacle connected to said valve and positioned to receive the liquid from said discharge pipe whereby a predetermined quantity in said receptacle causes said valve to close and shut off the supply, and a cover for said receptacle supported independently thereof and through Which the discharge may pass thereinto.

In testimony whereof We aiiix our signa,- tures.

- GEORGE H. SICKELS.

GEORGE F. KRAFT. 

